Accessory for an operating microscope



FIG. 1 is a front perspective view of an accessory for an operating microscope of our new design;

FIG. 2 is a rear perspective view of the accessory for an operating microscope of FIG. 1;

FIG. 3 is a front elevation view of the accessory for an operating microscope of FIG. 1;

FIG. 4 is a rear elevation view of the accessory for an operating microscope of FIG. 1;

FIG. 5 is a top plan view of the accessory for an operating microscope of FIG. 1;

FIG. 6 is a bottom plan view of the accessory for an operating microscope of FIG. 1;

FIG. 7 is a right side elevation view of the accessory for an operating microscope of FIG. 1; and,

FIG. 8 is a left side elevation view of the accessory for an operating microscope of FIG. 1. 

CLAIM The ornamental design for an accessory for an operating microscope, as shown and described. 